It's long been known that there are far fewer oysters in the bay than there used to be, but research from the University of Maryland suggests the drop is even more severe than earlier estimates.

The National Zoo says some of its animals knew about yesterday's quake well before any humans did.

The National Zoo's Don Moore says people often have the wrong idea about elephants. They’re a lot smarter than we think.

Over in the Zoo's elephant house, Kandula is busy bowing and curtsying to a trainer's commands.

What happens when things that everyone expects to migrate just, well, don't? Much like an unwanted house guest who overstays his or her welcome, non-migratory Canada geese set up shop year-round. This causes problems for humans and the environment alike.

White tail deer are a growing problem in the city of Rockville, Md., and now city officials are asking for residents' input on how to control them.